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OSG Extension Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer - Spiral-Point Extension Taps
OSGSpiral-Point Extension Taps

OSG Extension Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Extension Tap (MPN 2104401) is a 3/8"-24 UNF spiral-point extension tap with an H3 / 2B-3B tolerance, 3-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this…

SKU 3G-OTH-313547

Brand
OSG
Item
Extension Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps
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Technical Specifications

OSG
Manufacturer Part Number
2104401
Type
H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Extension Tap (MPN 2104401) is a 3/8"-24 UNF spiral-point extension tap with an H3 / 2B-3B tolerance, 3-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this demand and sources the genuine OSG tool, supporting your threading operations across 14 industrial departments — with specialist depth in cutting tools and far more.

Frequently Asked Questions

What is the OSG Extension Tap 2104401 used for?

The OSG Extension Tap 2104401 is used for threading blind or deep holes in metal parts, particularly where standard taps cannot reach. Its extended length and spiral-point design push chips forward, making it ideal for automotive, aerospace, and general manufacturing applications requiring precise UNF threads.

What are the specifications of the OSG Extension Tap 3/8-24 UNF?

This OSG tap has a 3/8-24 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, plug chamfer, and black oxide high-speed steel construction. The manufacturer part number is 2104401. It is designed for threading to Class 2B or 3B fit in materials like steel and aluminum.

Where to buy OSG Extension Tap 2104401 worldwide?

You can source the OSG Extension Tap 2104401 worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine OSG tooling for manufacturing operations.

How to select the correct OSG extension tap for a job?

To select the correct OSG extension tap, match the thread size (e.g., 3/8-24 UNF), tolerance class (H3 for 2B-3B fit), and chamfer type (plug for general use) to your hole depth and material. Ensure the tap's flute count and coating (black oxide) suit the workpiece. Consult OSG's technical data for optimal performance.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG Products

3G Electric supplies OSG spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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